China DOS Union

-- Unite DOS · Advance DOS · Grow DOS --
Union site: www.cn-dos.net　Forum site: www.cn-dos.net/forum

中国DOS联盟论坛
The time now is 2026-09-25 04:53

47,813 topics / 349,918 posts / today 1 new / 48,274 members

DOS批处理 & 脚本技术（批处理室） » How to skip the first two lines, the last two lines, and blank lines, and read the first column of a file?

Printable Version 　856 / 4

Floor1　ngela	Posted 2007-04-27 22:32
初级用户　Posts 10　Credits 28
for /f "skip=2 tokens=1" %%1 in (result.txt) do echo %%1>>new.txt SET A=1 FOR /F "TOKENS=1* DELIMS=:" %%A IN ('FINDSTR /N .* new.txt') DO ( echo %%B SET/A B=!A!%%100 IF !B! EQU 0 (ping -n 15 127.1>NUL) SET/A A+=1 ) This won't skip the last two lines or blank lines. Is there any way to do it? Can the file be read only once?

Floor2　lxmxn	Posted 2007-04-27 23:43
版主　Posts 4,938　Credits 11,386
There is a difference between first skipping the first two lines and then skipping blank lines, and first skipping blank lines and then skipping the first two lines. OP, please describe the problem clearly.

Floor3　ngela	Posted 2007-04-28 12:04
初级用户　Posts 10　Credits 28
First skip the first two lines, then skip the last two lines and blank lines. The blank lines are at the very end of the file. There are two lines.

Floor4　ngela	Posted 2007-04-29 00:27
初级用户　Posts 10　Credits 28
The purpose is to read the first column between the first two lines and the last two lines. The blank lines are after the last two lines.

Floor5　lxmxn	Posted 2007-04-29 04:51
版主　Posts 4,938　Credits 11,386
Since the last two lines of the file are blank lines, the for command can ignore them automatically. @echo off for /f "skip=2" %%a in (1.txt) do echo\%%a